Neuron double-layer control

The neuron PID double-layer control system is set up and the double-layer control method is proposed for control system with uncertainties in this paper. In this control system, a conventional PID controller is used in the insider layer control loop, and the neuron model-free controller is used in the outsider layer control loop. As a result of utilizing the double layer control structure, the PID control parameters can be selected imprecisely and the control system dynamics can be improved efficiently. The application of the proposed control method to the liquid level control of a tower of the fluid catalytic cracking unit (FCCU) is described. The excellent performance obtained in practice shows that the new control method has powerful vitality in industrial control.